---
title: "Suntech vs Ulica Solar - Brand Comparison | ComparePV"
description: "Compare Suntech vs Ulica Solar solar panels: full portfolio, efficiency, cell technology breakdown, warranty terms and company background."
source: "https://comparepv.com/suntech-vs-ulica-solar"
image: "https://comparepv.com/og/compare/manufacturers/suntech/ulica-solar.png"
---

# Suntech vs Ulica Solar

Suntech has the broader catalog (255 vs 76 models). Suntech leads on peak efficiency at 24.80%. Ulica Solar leans bifacial (58% of lineup).


## The two companies


| Attribute | Suntech | Ulica Solar |
| --- | --- | --- |
| Country | China | China |
| Headquarters | Wuxi | Jiaxing |
| Founded | 2001 | 2014 |
| Employees |  |  |
| Annual capacity |  |  |
| Tier 1 | yes | no |
| Listed |  |  |
| Website | [https://www.suntech-power.com](https://www.suntech-power.com) | [https://www.ulicasolar.com](https://www.ulicasolar.com) |


## Catalog & Power


| Measure | Suntech | Ulica Solar | Margin |
| --- | --- | --- | --- |
| Panel Models | 255 | 76 | +179 |
| Max Power | 735 W | 715 W | +20 W |
| Avg Power | 505 W | 564 W | +58 W |


## Efficiency


| Measure | Suntech | Ulica Solar | Margin |
| --- | --- | --- | --- |
| Max Efficiency | 24.80% | 23.88% | +0.92 pp |
| Avg Efficiency | 21.76% | 22.26% | +0.50 pp |


## Reliability & Warranty


| Measure | Suntech | Ulica Solar | Margin |
| --- | --- | --- | --- |
| Avg Temp Coefficient | -0.316%/°C | -0.303%/°C | +0.013 |
| Bifacial Share | 114 (45%) | 44 (58%) | +13 pp |
| Avg Warranty | 28.4 yrs | 29.3 yrs | +0.9 yr |


## Efficiency distribution

Suntech skews to higher efficiency: 19% of lineup is 23%+


| Efficiency band | Suntech | Ulica Solar |
| --- | --- | --- |
| \<20% | 11 (4.3%) | 0 |
| 20-21% | 61 (23.9%) | 4 (5.3%) |
| 21-22% | 64 (25.1%) | 16 (21.1%) |
| 22-23% | 70 (27.5%) | 45 (59.2%) |
| 23%+ | 49 (19.2%) | 11 (14.5%) |


## Power distribution

Ulica Solar offers more 600W+ panels (43% of lineup)


| Power band | Suntech | Ulica Solar |
| --- | --- | --- |
| \<400W | 32 (12.5%) | 1 (1.3%) |
| 400-499W | 104 (40.8%) | 22 (28.9%) |
| 500-599W | 69 (27.1%) | 20 (26.3%) |
| 600-699W | 42 (16.5%) | 29 (38.2%) |
| 700W+ | 8 (3.1%) | 4 (5.3%) |


## Cell technology

Dominant cell tech: TOPCon (71%)

Dominant cell tech: TOPCon (95%)


| Technology | Suntech | Ulica Solar |
| --- | --- | --- |
| TOPCon | 180 (70.6%) | 72 (94.7%) |
| Unknown | 65 (25.5%) | 0 |
| PERC | 5 (2.0%) | 0 |
| N-type | 5 (2.0%) | 4 (5.3%) |


## Top panels, Suntech


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [STP735S-D66-Nsh+](https://comparepv.com/panel/suntech-stp735s-d66-nsh) | 735 | 23.7 | -0.280 | Monocrystalline |
| 2 | [STP730S-D66-Nsh+](https://comparepv.com/panel/suntech-stp730s-d66-nsh) | 730 | 23.5 | -0.280 | Monocrystalline |
| 3 | [STP725S-D66-Nsh+](https://comparepv.com/panel/suntech-stp725s-d66-nsh) | 725 | 23.3 | -0.280 | Monocrystalline |
| 4 | [STP720S-D66-Nsh+](https://comparepv.com/panel/suntech-stp720s-d66-nsh) | 720 | 23.2 | -0.280 | Monocrystalline |
| 5 | [STP715S-D66-Nsh+](https://comparepv.com/panel/suntech-stp715s-d66-nsh) | 715 | 23.0 | -0.280 | Monocrystalline |
| 6 | [STP710S-D66-Nsh+](https://comparepv.com/panel/suntech-stp710s-d66-nsh) | 710 | 22.9 | -0.290 | Monocrystalline |
| 7 | [STP705S-D66-Nsh+](https://comparepv.com/panel/suntech-stp705s-d66-nsh) | 705 | 22.7 | -0.290 | Monocrystalline |
| 8 | [STP700S-D66-Nsh+](https://comparepv.com/panel/suntech-stp700s-d66-nsh) | 700 | 22.5 | -0.290 | Monocrystalline |
| 9 | [STP675S-D66/Wmh](https://comparepv.com/panel/suntech-stp675s-d66-wmh) | 675 | 21.7 | -0.340 | Monocrystalline |
| 10 | [STP670S-D66/Wmh](https://comparepv.com/panel/suntech-stp670s-d66-wmh) | 670 | 21.6 | -0.340 | Monocrystalline |


## Top panels, Ulica Solar


| # | Model | Power | Efficiency | Temp. coefficient | Technology |
| --- | --- | --- | --- | --- | --- |
| 1 | [UL-715M-132DGN](https://comparepv.com/panel/ulica-solar-ul-715m-132dgn) | 715 | 23.0 | -0.290 | Monocrystalline |
| 2 | [UL-710M-132DGN](https://comparepv.com/panel/ulica-solar-ul-710m-132dgn) | 710 | 22.9 | -0.290 | Monocrystalline |
| 3 | [UL-705M-132DGN](https://comparepv.com/panel/ulica-solar-ul-705m-132dgn) | 705 | 22.7 | -0.290 | Monocrystalline |
| 4 | [UL-700M-132DGN](https://comparepv.com/panel/ulica-solar-ul-700m-132dgn) | 700 | 22.5 | -0.290 | Monocrystalline |
| 5 | [UL-670M-132DG](https://comparepv.com/panel/ulica-solar-ul-670m-132dg) | 670 | 21.6 | -0.340 | Monocrystalline |
| 6 | [UL-670M-132HV](https://comparepv.com/panel/ulica-solar-ul-670m-132hv) | 670 | 21.6 | -0.340 | Monocrystalline |
| 7 | [UL-665M-132HV](https://comparepv.com/panel/ulica-solar-ul-665m-132hv) | 665 | 21.4 | -0.340 | Monocrystalline |
| 8 | [UL-665M-132DG](https://comparepv.com/panel/ulica-solar-ul-665m-132dg) | 665 | 21.4 | -0.340 | Monocrystalline |
| 9 | [UL-660M-132DG](https://comparepv.com/panel/ulica-solar-ul-660m-132dg) | 660 | 21.2 | -0.340 | Monocrystalline |
| 10 | [UL-660M-132HV](https://comparepv.com/panel/ulica-solar-ul-660m-132hv) | 660 | 21.2 | -0.340 | Monocrystalline |


## Other comparisons

- [Suntech vs A.B. Energy](https://comparepv.com/suntech-vs-a-b-energy)
- [AE Solar vs Ulica Solar](https://comparepv.com/ae-solar-vs-ulica-solar)
- [Suntech vs AEET](https://comparepv.com/suntech-vs-aeet)
- [AIKO vs Ulica Solar](https://comparepv.com/aiko-vs-ulica-solar)
- [Suntech vs AKCOME](https://comparepv.com/suntech-vs-akcome)
- [ARTsolar vs Ulica Solar](https://comparepv.com/artsolar-vs-ulica-solar)


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Source: https://comparepv.com/suntech-vs-ulica-solar

Not in this file, on the page: the distributions above drawn as charts.